JPH0356047B2 - - Google Patents
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- Publication number
- JPH0356047B2 JPH0356047B2 JP1156973A JP15697389A JPH0356047B2 JP H0356047 B2 JPH0356047 B2 JP H0356047B2 JP 1156973 A JP1156973 A JP 1156973A JP 15697389 A JP15697389 A JP 15697389A JP H0356047 B2 JPH0356047 B2 JP H0356047B2
- Authority
- JP
- Japan
- Prior art keywords
- eye
- eyeball
- mirror
- measurement
- convergence
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 230000004424 eye movement Effects 0.000 claims description 38
- 238000005259 measurement Methods 0.000 claims description 29
- 230000004308 accommodation Effects 0.000 claims description 18
- 210000005252 bulbus oculi Anatomy 0.000 description 28
- 210000001508 eye Anatomy 0.000 description 23
- 230000003287 optical effect Effects 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004439 pupillary reactions Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 208000003464 asthenopia Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 241000282412 Homo Species 0.000 description 1
- 210000004087 cornea Anatomy 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000000162 simple eye Anatomy 0.000 description 1
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、立体デイスプレイの注視時において
測定することが重要な輻輳を調節と共に計測可能
とし、人間の視覚反応特性の測定に有効に利用で
きるようにした簡易型の調節・輻輳同時計測装置
に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention enables convergence, which is important to measure when gazing at a stereoscopic display, to be measured together with accommodation, and can be effectively used to measure human visual reaction characteristics. The present invention relates to a simple accommodation and vergence simultaneous measurement device.
［従来の技術］
本発明者らは、特開昭62−8730号（特願昭60−
146227号）によつて、一眼についての調節・眼球
運動・瞳孔反応を同時計測可能とした三次元オプ
トメータ（TDO）を提案し、さらに、特願昭62
−138352号によつて両眼の調節・眼球運動・瞳孔
反応を同時計測する手段を提案している。[Prior Art] The inventors of the present invention have published Japanese Patent Application Laid-open No. 8730/1983 (Japanese Patent Application No.
No. 146227), we proposed a three-dimensional optometer (TDO) that was capable of simultaneously measuring accommodation, eye movement, and pupillary response for a single eye.
No. 138352 proposes a method for simultaneously measuring accommodation, eye movements, and pupillary reactions of both eyes.
しかるに、近年、種々の二眼式立体デイスプレ
イが実用化される段階になつてきて、使用者の調
節・輻輳等を同時計測して、各種のデイスプレイ
の評価に使用したいという要求が強くなつてい
る。 However, in recent years, various twin-lens 3D displays have come to the stage of being put into practical use, and there is a growing demand for simultaneous measurement of the user's accommodation, convergence, etc., and for use in evaluating various displays. .
即ち、２眼式立体映像システムにより画面から
大巾に飛び出した画面を見た時、人間は輻輳のみ
起して調節を行わないのか、輻輳と調節を協調し
て行つているのか、それらが不安定に振動してい
るのか、様々な可能性がある。このような問題
は、眼の疲労を引き起しやすいと言われている２
眼式立体映像において、できるだけ視覚疲労を誘
発しない方式の考案、眼にやさしい撮影技術の開
発などにとつて、極めて重要な基礎知識である。 In other words, when humans see a large screen projected from a two-lens 3D imaging system, do they only converge and do not make adjustments, or do they coordinate convergence and accommodation? There are various possibilities as to whether it is vibrating stably. Such problems are said to easily cause eye fatigue.
This is extremely important basic knowledge for devising methods for ocular stereoscopic imaging that do not induce visual fatigue as much as possible, and developing photographic techniques that are easy on the eyes.
しかしながら、現在は、上述したように、
TDOによる１眼の調節・眼球運動等の同時計測
のみが行える状況であり、輻輳をも同時に計測す
る必要性が極めて高くなつてきているが、装置の
大型化等の問題もあつて、それが実現していな
い。 However, currently, as mentioned above,
Currently, it is only possible to simultaneously measure accommodation, eye movements, etc. of one eye using TDO, and the need to measure convergence at the same time is becoming extremely high.However, there are also problems such as increasing the size of the device, Not realized.
［発明が解決しようとする課題］
本発明の技術的課題は、上記要望に対応し、既
提案のTDOを有効に利用して、立体デイスプレ
イの注視時に測定することが必要な輻輳を調節と
共に安価且つ容易に同時計測可能とし、人間の視
覚反応特性の測定に有効に利用できるようにした
簡易型の調節・輻輳同時計測装置を得ることにあ
る。[Problem to be Solved by the Invention] The technical problem of the present invention is to respond to the above-mentioned demands and to effectively utilize the already proposed TDO to adjust the convergence that is required to be measured when gazing at a 3D display at a low cost. Another object of the present invention is to provide a simple accommodation/convergence simultaneous measuring device that can easily perform simultaneous measurements and can be effectively used for measuring human visual reaction characteristics.
［課題を解決するための手段］
上記課題を解決するための本発明の簡易調節・
輻輳同時計測装置は、一眼の調節・眼球運動を同
時計測可能にしたTDOと、残りの一眼の眼球運
動を計測する眼球運動計測器と、それらによつて
計測した眼球運動データを取り込むことによつて
輻輳・開散の動きを計算する輻輳・開散計算部
と、それらの計測結果を記録表示する記録表示部
とを備えたことを特徴とするものである。[Means for Solving the Problems] Simple adjustment and control of the present invention for solving the above problems
The simultaneous convergence measurement device incorporates the TDO, which can simultaneously measure accommodation and eye movements of one eye, and the eye movement measuring device that measures the eye movements of the remaining eye, and the eye movement data measured by them. The present invention is characterized in that it includes a vergence/diversity calculation section that calculates the movement of convergence and divergence, and a record display section that records and displays the measurement results.
［作用］
一眼については、TDOによつて調節と眼球運
動等が計測され、残りの一眼については、眼球運
動計測器により眼球運動が計測される。輻輳・開
散計算部においては、それらによつて計測した両
眼の眼球運動データが取り込まれ、それらのデー
タに基づいて輻輳・開散の動きが計算される。[Effect] For one eye, accommodation, eye movement, etc. are measured by TDO, and for the remaining one eye, eye movement is measured by an eye movement measuring device. In the convergence/divergence calculation section, the eye movement data of both eyes measured by them is taken in, and the convergence/divergence movement is calculated based on the data.
上記眼球運動計測器は、比較的小型化され、簡
易なメガネ様のものに取りつけて測定することが
できるため、それを装着してもTDOでの測定に
支障がなく、従つて、TDOと眼球運動計測器と
を組み合せてシステム化することにより、調節等
と同時に容易に輻輳をも測定可能になる。 The above-mentioned eye movement measuring device is relatively compact and can be attached to a simple glasses-like object for measurement, so there is no problem with TDO measurement even if it is worn, and therefore, TDO and eye movement can be easily measured. By combining it with a motion measuring device and creating a system, it becomes possible to easily measure convergence as well as adjustment.
［実施例］
第１図は、本発明に係る調節・輻輳同時測定装
置の構成を例示するものである。[Example] FIG. 1 illustrates the configuration of a simultaneous accommodation and vergence measuring device according to the present invention.
この調節・輻輳同時測定装置は、一眼（左眼）
の調節・眼球運動・瞳孔反応を同時計測可能にし
たTDOと、残りの一眼（右眼）の眼球運動を計
測する眼球運動計測器と、それらによつて計測し
た眼球運動データを取り込むことによつて輻輳・
開散の動きを計算する輻輳・開散計算部（計算
機）と、それらの計測結果を記録表示する記録表
示部とによつて構成される。 This simultaneous accommodation and convergence measurement device is a single-lens (left eye)
The TDO, which enables simultaneous measurement of accommodation, eye movements, and pupillary reactions, and an eye movement measuring device that measures eye movements of the remaining single eye (the right eye), and the eye movement data measured by these devices are incorporated. Tsute congestion/
It is composed of a vergence/diversity calculation unit (calculator) that calculates the movement of divergence, and a record display unit that records and displays the measurement results.
上記TDOとしては、本発明者らが先に特開昭
62−8730号として提案しているような装置を用い
ることができる。 As for the above TDO, the present inventors first published the
A device such as that proposed in No. 62-8730 can be used.
第２図は、その装置の概要を示すもので、眼球
１に対してビーム状赤外光パルスを照射すると共
に、眼底からの反射光を受光して位置のずれから
眼球の屈折力を測定する光源兼受光測定装置２、
眼球１の向きの変化を検出する方向測定装置３、
視標となる情報入出力装置等の立体デイスプレイ
４、２軸揺動ミラー５、眼球１の実像を２軸揺動
ミラー５の反射面上に結像させる相対向する一対
の凹面鏡７，８及び上記実像を眼球の位置と光学
的に等価な光源と対向する位置に第２の実像とし
て結像させるレンズ系９とを備えたリレー光学系
６、上記２軸揺動ミラー５を上記方向測定装置３
の出力に基づいて傾動させることにより、眼球１
の向きの変化に拘らず上記第２の実像を静止した
ものとするミラー揺動駆動機構（図示せず）等を
備えている。 Figure 2 shows an overview of the device, which irradiates the eyeball 1 with a beam-shaped infrared light pulse, receives reflected light from the fundus, and measures the refractive power of the eyeball from the positional shift. Light source and light receiving measuring device 2,
a direction measuring device 3 that detects a change in the orientation of the eyeball 1;
A stereoscopic display 4 such as an information input/output device serving as a visual target, a two-axis swinging mirror 5, a pair of opposing concave mirrors 7 and 8 that form a real image of the eyeball 1 on the reflective surface of the two-axis swinging mirror 5, and A relay optical system 6 comprising a lens system 9 that forms the real image as a second real image at a position facing a light source that is optically equivalent to the position of the eyeball; 3
By tilting the eyeball 1 based on the output of
The mirror swing drive mechanism (not shown) is provided to keep the second real image stationary regardless of changes in the direction of the mirror.
なお、眼球１の前方に配設されたミラー１１
は、可視光を通過させるが赤外光を反射させるも
のであり、また１２はハーフミラーである。 Note that a mirror 11 disposed in front of the eyeball 1
12 is a half mirror that allows visible light to pass through but reflects infrared light.
この眼球屈折力測定装置は、眼球１の向きの変
化を方向測定装置３で検出し、その出力に応じて
２軸揺動ミラー５を傾動させ、眼球１の向きに拘
らず常に赤外光を眼球１の正面から投射可能と
し、それにより眼球の屈折力の測定を行うように
したものである。 This eyeball refractive power measuring device detects a change in the orientation of the eyeball 1 using a direction measuring device 3, and tilts a two-axis swinging mirror 5 according to the output thereof, so that infrared light is always emitted regardless of the orientation of the eyeball 1. It is possible to project from the front of the eyeball 1, thereby measuring the refractive power of the eyeball.
さらに具体的に説明すると、上記TDOのリレ
ー光学系において、光源の前方に置かれたレンズ
系９、２軸揺動ミラー５及び相対向状態の２枚の
凹面鏡７，８は、光ビームが図中に矢印で示す光
路を通つて点Ｃの眼球に投射するように配置して
いる。 More specifically, in the relay optical system of the TDO, the lens system 9 placed in front of the light source, the biaxial swinging mirror 5, and the two concave mirrors 7 and 8 facing each other are arranged such that the light beam is It is arranged so that the light is projected onto the eyeball at point C through the optical path indicated by the arrow inside.
即ち、レンズ系９を経て凹面鏡７の曲率中心
R1から水平面内において僅かにずれた点Ａを通
る光ビームは、凹面鏡７の中心Ｄで反射した後、
水平面上において上記点Ａと曲率中心R1を挟ん
で対称な点Ｂに集光する。この点Ｂは、他方の凹
面鏡８の曲率中心R2からわずかに鉛直方向上方
の位置に相当し、このＢ点を通る光ビームを直進
して凹面鏡８の中心Ｅに向かうように凹面鏡８を
配置すると、その中心Ｅで反射した光ビームは、
凹面鏡８の曲率中心R2を挟んで鉛直面内におい
て、上記点Ｂと対称な点Ｃに向かうようになる。
このように構成すると、凹面鏡の光軸のずれに伴
う収差が打消され、全体として収差が低減され
る。 That is, the center of curvature of the concave mirror 7 passes through the lens system 9.
A light beam passing through a point A slightly shifted from R 1 in the horizontal plane is reflected at the center D of the concave mirror 7, and then
The light is focused on a point B, which is symmetrical to the point A on the horizontal plane with the center of curvature R1 in between. This point B corresponds to a position slightly vertically above the center of curvature R 2 of the other concave mirror 8, and the concave mirror 8 is arranged so that the light beam passing through this point B travels straight toward the center E of the concave mirror 8. Then, the light beam reflected at the center E is
In the vertical plane across the center of curvature R 2 of the concave mirror 8, it will move toward a point C, which is symmetrical to the above point B.
With this configuration, aberrations caused by misalignment of the optical axis of the concave mirror are canceled out, and aberrations are reduced as a whole.
従つて、点Ａに点光源を置いたとすれば、その
実像が凹面鏡７によつて点Ｂの位置にでき、さら
に凹面鏡８によつて点Ｃの位置に実像として結像
する。 Therefore, if a point light source is placed at point A, its real image will be formed at point B by concave mirror 7, and will be formed as a real image at point C by concave mirror 8.
而して、２軸揺動ミラー５を２軸あるいはいず
れかの軸のまわりに所定量傾ければ、リレー光学
系によつて作られる眼球の実像を眼球１の向きの
変化に拘らず静止させた状態にすることができ、
赤外光によつて眼球１を常に正面から照射するこ
とができる。 By tilting the two-axis swinging mirror 5 by a predetermined amount around two axes or any one of the axes, the real image of the eyeball created by the relay optical system can be kept stationary regardless of changes in the orientation of the eyeball 1. can be left in a
The eyeball 1 can always be illuminated from the front with infrared light.
上記２軸揺動ミラー５の傾動量を測定する方向
測定装置３は、ミラー１１とデイスプレイ４との
間のハーフミラー１２によつて反射される光の向
きに、テレビカメラ等による受光部を配設したも
のであり、従つて、眼球１の像はミラー１１及び
ハーフミラー１２を通つて上記測定装置３に至
り、そこで眼球１の向きが検出され、その出力に
応じた駆動信号が揺動ミラーの揺動駆動機構に伝
えられ、これにより揺動ミラー５が傾動される。 The direction measuring device 3 that measures the amount of tilt of the two-axis swinging mirror 5 has a light receiving section such as a television camera arranged in the direction of the light reflected by the half mirror 12 between the mirror 11 and the display 4. Therefore, the image of the eyeball 1 passes through the mirror 11 and the half mirror 12 and reaches the measuring device 3, where the direction of the eyeball 1 is detected, and a drive signal corresponding to the output is sent to the swinging mirror. This is transmitted to the swing drive mechanism of the swing mirror 5, thereby tilting the swing mirror 5.
また、デイスプレイ４の画像は、ハーフミラー
１２及びミラー１１を通つて眼球１に入射され、
従つて被験者はそのデイスプレイ４の画像を見な
がら自然な状態で測定できる。 Further, the image on the display 4 is incident on the eyeball 1 through the half mirror 12 and the mirror 11,
Therefore, the subject can take measurements in a natural state while looking at the image on the display 4.
一方、上述したところから明らかなように、眼
球１の実像がミラー１１及び一対の凹面鏡７，８
によつて揺動ミラー５の反射面上の点Ａに作られ
る。この実像は、揺動ミラー５での反射によりレ
ンズ系９に入射して、点Ｆに第２の実像を作る。
而して、上記揺動ミラー５を眼球１の向きの変化
に対応させて傾動し、眼球の実像がレンズ系９に
入射する向きを変えれば、点Ｆに作られる第２の
実像を光源兼受光測定装置２に対向する静止した
ものとすることができる。 On the other hand, as is clear from the above, the real image of the eyeball 1 is the mirror 11 and the pair of concave mirrors 7 and 8.
is formed at point A on the reflecting surface of the swinging mirror 5. This real image is reflected by the swinging mirror 5 and enters the lens system 9, creating a second real image at point F.
By tilting the swinging mirror 5 in accordance with the change in the orientation of the eyeball 1 and changing the direction in which the real image of the eyeball enters the lens system 9, the second real image created at point F can be used as a light source. It can be a stationary device facing the light receiving measurement device 2.
即ち、眼球１の向きは常時方向測定装置３によ
つて検出され、その検出値に応じた駆動信号が揺
動ミラーの駆動機構に伝えられる。これにより、
ミラー５は眼球１の動きに追随して所定の方向に
移動し、光源兼受光測定装置２からのビーム状赤
外光パルスは常に眼球１を正面から照射する。 That is, the direction of the eyeball 1 is constantly detected by the direction measuring device 3, and a drive signal corresponding to the detected value is transmitted to the drive mechanism of the swinging mirror. This results in
The mirror 5 moves in a predetermined direction following the movement of the eyeball 1, and the beam-like infrared light pulse from the light source and light receiving measuring device 2 always irradiates the eyeball 1 from the front.
このように赤外光を正面から照射された眼球１
からの反射光は光源兼受光測定装置２に入射し、
その位置のずれから眼球１の屈折力が測定され
る。 Eyeball 1 irradiated with infrared light from the front in this way
The reflected light enters the light source and light receiving measuring device 2,
The refractive power of the eyeball 1 is measured from the positional shift.
また、第１図の眼球運動計測器としては、近年
の赤外LEDや受光素子の性能の向上に伴い、そ
れらを組み合せて簡便かつ正確に眼球運動を測定
する装置が数多く開発されているので、それらを
適宜利用することができる。 In addition, as for the eye movement measuring device shown in Fig. 1, with the improvement in the performance of infrared LEDs and light receiving elements in recent years, many devices have been developed that combine them to easily and accurately measure eye movement. You can use them as appropriate.
例えば、赤外LEDによる赤外光を眼球に向け
て投射すると、角膜によつて反射されて光点が見
えるが（第１プルオニエ像）、眼の動きによつて
第１プルオニエ像が移動するので、その移動量を
フオトセルによつて計測し、眼球運動量を計測す
ることができる。 For example, when infrared light from an infrared LED is projected toward the eyeball, it is reflected by the cornea and a light spot is visible (first Pluonier image), but the first Pluonier image moves as the eye moves. , the amount of movement can be measured using a photocell, and the amount of eye movement can be measured.
このような装置としては、竹井機器社のトーク
アイシステムなどがある。同システムの検出部
は、競技用に用いられるゴーグルに１眼用の眼球
運動測定素子が装着されたもので、それによつて
例えば右眼の眼球運動を測定しても、TDOでの
左眼の計測に支障を来すことはない。 An example of such a device is the Talk Eye System manufactured by Takei Kiki Co., Ltd. The detection unit of this system has a single-eye eye movement measuring element attached to goggles used for competitions, so that even if it measures the eye movement of the right eye, for example, the left eye does not measure the eye movement of the left eye during TDO. It does not interfere with measurement.
而して、TDOと上記トークアイ等の眼球運動
計測器からの眼球運動データを輻輳・開散計算部
に取り込むことによつて、両眼の輻輳・開散の動
きを計算することができる。 By inputting the TDO and eye movement data from an eye movement measurement device such as the TalkEye to the convergence/divergence calculation section, the movement of convergence/divergence of both eyes can be calculated.
第３図は、上記TDOと眼球運動計測器を併用
した測定状態の概要を示すもので、２１はTDO
のリレー光学系、２２はTDOの顎台、２３はゴ
ーグル、２４は眼球運動測定素子を示している。
また、ゴーグルはTDOの測定光を反射して測定
不能とするために、左眼の部分にTDOの測定光
を通過させる孔２５を設けている。 Figure 3 shows an overview of the measurement conditions using the above-mentioned TDO and an eye movement measuring device.
22 is a TDO chin rest, 23 is a goggle, and 24 is an eye movement measuring element.
Further, the goggles are provided with a hole 25 in the left eye portion through which the TDO measurement light passes, in order to reflect the TDO measurement light and make measurement impossible.
上記眼球運動計測器におけるフオトセルの代り
に、リニアCCDやMOS型TVカメラによつて計
測するものも知られており、そのためそれらを適
宜選択使用でき、さらに眼球運動に伴う眼の電位
の変化によつて計測する（EOG）こともできる。 Instead of the photocell in the eye movement measuring device mentioned above, it is also known to use a linear CCD or MOS type TV camera, which allows you to select and use them as appropriate. It is also possible to perform measurements using EOG (EOG).
これらの眼球運動計測器は、比較的小型化され
て、簡単なメガネ様のものに取りつけて測定する
ことができるため、それを装着してもTDOでの
測定に支障がなく、従つて、この眼球運動計測器
を前述のTDOと組み合せてシステム化すること
により、容易に輻輳をも測定可能になる。 These eye movement measuring instruments are relatively compact and can be attached to simple glasses-like objects for measurement, so wearing them does not interfere with TDO measurements. By combining an eye movement measuring device with the TDO described above and creating a system, it becomes possible to easily measure convergence.
輻輳・開散計算部における輻輳・開散の動きの
計算は、TDO及び眼球運動計測器からの眼球運
動データに基づき、
輻輳角＝左眼の角度−右眼の角度
によつて行うものである。この測定により、両眼
をどれだけ内寄せしているかがわかる。例えば、
無限遠を見ている時は、両眼とも０度なので、輻
輳角は０度となるが、内よせすると数十度とな
る。 The calculation of convergence and divergence movements in the convergence and divergence calculation section is based on the eye movement data from the TDO and eye movement measurement device, and is performed using the following equation: convergence angle = left eye angle - right eye angle. . This measurement shows how much your eyes are brought in. for example,
When you are looking at infinity, both eyes are at 0 degrees, so the convergence angle is 0 degrees, but when you look inward, it becomes several tens of degrees.
記録表示部は、上述した調節、輻輳等の計測結
果を適宜手段により記録表示するものである。 The record/display unit records and displays the measurement results of the above-mentioned accommodation, convergence, etc. by appropriate means.
［発明の効果］
以上に詳述した本発明の計測装置によれば、既
提案のTDOと簡単な眼球運動測定装置を組み合
せることによつて、立体デイスプレイの注視時に
おいて測定することが重要な輻輳を調節と共に計
測することができ、人間の視覚反応特性の測定に
有効に利用することができる。[Effects of the Invention] According to the measuring device of the present invention described in detail above, by combining the already proposed TDO and a simple eye movement measuring device, it is possible to measure important things when gazing at a stereoscopic display. Convergence can be measured together with accommodation, and can be effectively used to measure human visual reaction characteristics.
第１図は本発明に係る調節・輻輳同時計測装置
のブロツク構成図、第２図はTDOの構成図、第
３図はTDOと眼球運動計測器を用いた測定状態
の概要を示す説明図である。
Figure 1 is a block diagram of the simultaneous accommodation and vergence measurement device according to the present invention, Figure 2 is a diagram of the configuration of the TDO, and Figure 3 is an explanatory diagram showing an overview of the measurement state using the TDO and the eye movement measuring device. be.
Claims (1)
三次元オプトメータと、残りの一眼の眼球運動を
計測する眼球運動計測器と、それらによつて計測
した眼球運動データを取り込むことによつて輻
輳・開散の動きを計算する輻輳・開散計算部と、
それらの計測結果を記録表示する記録表示部とを
備えたことを特徴とする調節・輻輳同時計測装
置。1. A three-dimensional optometer that can simultaneously measure accommodation and eye movements of one eye, an eye movement measuring device that measures eye movements of the remaining one eye, and convergence measurement by incorporating the eye movement data measured by them.・A vergence/diversity calculation unit that calculates the movement of divergence;
A simultaneous accommodation and vergence measurement device comprising a recording display unit that records and displays the measurement results.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1156973A JPH0321222A (en) | 1989-06-19 | 1989-06-19 | Device for simultaneously adjusting and measuring convergence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1156973A JPH0321222A (en) | 1989-06-19 | 1989-06-19 | Device for simultaneously adjusting and measuring convergence |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0321222A JPH0321222A (en) | 1991-01-30 |
| JPH0356047B2 true JPH0356047B2 (en) | 1991-08-27 |
Family
ID=15639379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1156973A Granted JPH0321222A (en) | 1989-06-19 | 1989-06-19 | Device for simultaneously adjusting and measuring convergence |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0321222A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07116119A (en) * | 1993-10-21 | 1995-05-09 | Nippon Telegr & Teleph Corp <Ntt> | Method and apparatus of measuring chaos condition and method and apparatus of determining health condition |
| JP3348956B2 (en) * | 1994-03-24 | 2002-11-20 | ソニー株式会社 | Display device |
| JP4121880B2 (en) * | 2003-03-28 | 2008-07-23 | 株式会社トプコン | Three-dimensional observation state measuring apparatus and method |
| JP4121881B2 (en) * | 2003-03-28 | 2008-07-23 | 株式会社トプコン | Three-dimensional observation state measuring apparatus and method |
| JP2004298461A (en) * | 2003-03-31 | 2004-10-28 | Topcon Corp | Refraction measuring apparatus |
| JP4890060B2 (en) * | 2005-03-31 | 2012-03-07 | 株式会社トプコン | Ophthalmic equipment |
| CA2974317A1 (en) | 2015-01-20 | 2016-07-28 | Green C.Tech Ltd | Method and system for automatic eyesight diagnosis |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6033505A (en) * | 1983-08-04 | 1985-02-20 | Matsushita Electric Ind Co Ltd | Manufacture of diffraction grating |
| JPS623730A (en) * | 1985-06-28 | 1987-01-09 | 松下電器産業株式会社 | Furniture with insect control apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6468235A (en) * | 1987-09-07 | 1989-03-14 | Agency Ind Science Techn | Head mount type three-dimensional optometer equipped with eyeball/head cooperative movement analyser |
-
1989
- 1989-06-19 JP JP1156973A patent/JPH0321222A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6033505A (en) * | 1983-08-04 | 1985-02-20 | Matsushita Electric Ind Co Ltd | Manufacture of diffraction grating |
| JPS623730A (en) * | 1985-06-28 | 1987-01-09 | 松下電器産業株式会社 | Furniture with insect control apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0321222A (en) | 1991-01-30 |
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